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| author | Paul Eggert <eggert@cs.ucla.edu> | 2015-11-10 12:42:06 -0800 |
|---|---|---|
| committer | Paul Eggert <eggert@cs.ucla.edu> | 2015-11-10 12:42:32 -0800 |
| commit | 6c16c9a649ab5a5ea4bec12345fd369752da5dc0 (patch) | |
| tree | 391b45de20dad761581a15b7b8fa4732c9387921 /lib | |
| parent | c92dbd6d0c234ff993acb0a095c024593bc185c8 (diff) | |
| download | emacs-6c16c9a649ab5a5ea4bec12345fd369752da5dc0.tar.gz | |
Merge from gnulib
This incorporates:
2015-11-10 intprops: new public macro EXPR_SIGNED
2015-11-10 intprops: fix typo in clang port
* lib/intprops.h: Copy from gnulib.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/intprops.h | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/lib/intprops.h b/lib/intprops.h index c55c4db1034..8fff86d4371 100644 --- a/lib/intprops.h +++ b/lib/intprops.h @@ -22,8 +22,7 @@ #include <limits.h> -/* Return an integer value, converted to the same type as the integer - expression E after integer type promotion. V is the unconverted value. */ +/* Return a value with the common real type of E and V and the value of V. */ #define _GL_INT_CONVERT(e, v) (0 * (e) + (v)) /* Act like _GL_INT_CONVERT (E, -V) but work around a bug in IRIX 6.5 cc; see @@ -48,12 +47,12 @@ /* True if the signed integer expression E uses two's complement. */ #define _GL_INT_TWOS_COMPLEMENT(e) (~ _GL_INT_CONVERT (e, 0) == -1) -/* True if the arithmetic type T is signed. */ +/* True if the real type T is signed. */ #define TYPE_SIGNED(t) (! ((t) 0 < (t) -1)) -/* Return 1 if the integer expression E, after integer promotion, has - a signed type. */ -#define _GL_INT_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0) +/* Return 1 if the real expression E, after promotion, has a + signed or floating type. */ +#define EXPR_SIGNED(e) (_GL_INT_NEGATE_CONVERT (e, 1) < 0) /* Minimum and maximum values for integer types and expressions. These @@ -76,11 +75,11 @@ /* The maximum and minimum values for the type of the expression E, after integer promotion. E should not have side effects. */ #define _GL_INT_MINIMUM(e) \ - (_GL_INT_SIGNED (e) \ + (EXPR_SIGNED (e) \ ? - _GL_INT_TWOS_COMPLEMENT (e) - _GL_SIGNED_INT_MAXIMUM (e) \ : _GL_INT_CONVERT (e, 0)) #define _GL_INT_MAXIMUM(e) \ - (_GL_INT_SIGNED (e) \ + (EXPR_SIGNED (e) \ ? _GL_SIGNED_INT_MAXIMUM (e) \ : _GL_INT_NEGATE_CONVERT (e, 1)) #define _GL_SIGNED_INT_MAXIMUM(e) \ @@ -354,7 +353,7 @@ /* Store A <op> B into *R, where OP specifies the operation. BUILTIN is the builtin operation, and OVERFLOW the overflow predicate. See above for restrictions. */ -#if 5 <= __GNUC__ || __has_builtin (__builtin_add_oveflow) +#if 5 <= __GNUC__ || __has_builtin (__builtin_add_overflow) # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) builtin (a, b, r) #elif 201112 <= __STDC_VERSION__ && !_GL__GENERIC_BOGUS # define _GL_INT_OP_WRAPV(a, b, r, op, builtin, overflow) \ @@ -411,7 +410,7 @@ : _GL_INT_OP_CALC1 (a, b, r, op, overflow, ut, t, tmin, tmax)) #define _GL_INT_OP_CALC1(a, b, r, op, overflow, ut, t, tmin, tmax) \ ((overflow (a, b) \ - || (_GL_INT_SIGNED ((a) op (b)) && ((a) op (b)) < (tmin)) \ + || (EXPR_SIGNED ((a) op (b)) && ((a) op (b)) < (tmin)) \ || (tmax) < ((a) op (b))) \ ? (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t, tmin, tmax), 1) \ : (*(r) = _GL_INT_OP_WRAPV_VIA_UNSIGNED (a, b, op, ut, t, tmin, tmax), 0)) |